Title :
1.5 V tunable Square-Root Domain filter
Author :
De La Cruz-Blas, C.A. ; López-Martín, A.J. ; Carlosena, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Pamplona Navarra, Spain
Abstract :
A novel approach to the design of low-voltage CMOS Square-Root Domain filters is presented. It is based on the large-signal behaviour of a well-known class-AB linear transconductor. A first-order filter is built employing three such transconductors, featuring simplicity and compactness. Measurement results for an experimental prototype in 0.8 μm CMOS validate the technique proposed. The filter operates with a single supply voltage of 1.5 V and can be tuned in more than one decade.
Keywords :
CMOS integrated circuits; circuit tuning; low-pass filters; signal processing; 0.8 micron; 1.5 V; CMOS square-root domain filters; class-AB linear transconductor; first order filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040171
